diff --git a/src/test/compile-fail/feature-gate-used.rs b/src/test/compile-fail/feature-gate-used.rs new file mode 100644 index 000000000000..68679d7dac89 --- /dev/null +++ b/src/test/compile-fail/feature-gate-used.rs @@ -0,0 +1,15 @@ +// Copyright 2017 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#[used] +fn foo() {} +//~^^ ERROR the `#[used]` attribute is an experimental feature + +fn main() {} diff --git a/src/test/run-make/used/Makefile b/src/test/run-make/used/Makefile new file mode 100644 index 000000000000..70ac2e3802b8 --- /dev/null +++ b/src/test/run-make/used/Makefile @@ -0,0 +1,12 @@ +-include ../tools.mk + +ifdef IS_WINDOWS +# Do nothing on MSVC. +all: + exit 0 +else +all: + $(RUSTC) -C opt-level=3 --emit=obj used.rs + nm -C used.o | grep FOO + nm -C used.o | grep -v BAR +endif diff --git a/src/test/run-make/used/used.rs b/src/test/run-make/used/used.rs new file mode 100644 index 000000000000..186cd0fdf5e3 --- /dev/null +++ b/src/test/run-make/used/used.rs @@ -0,0 +1,17 @@ +// Copyright 2017 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#![crate_type = "lib"] +#![feature(used)] + +#[used] +static FOO: u32 = 0; + +static BAR: u32 = 0;